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The U.S. Global Change Research Program (USGCRP) is pleased to announce that Dr. David Reidmiller will serve as Director of the Fourth National Climate Assessment (NCA4). David is on detail to the USGCRP National Coordination Office from the Department of the Interior’s U.S. Geological Survey. As Director, he will lead the production of NCA4,

On behalf of the U.S. Government, the Department of State is requesting nominations for experts to contribute to the 6th edition of the Global Environmental Outlook (GEO-6), a United Nations Environment Programme (UNEP) assessment that reviews the state of the global environment.

The Intergovernmental Panel on Climate Change (IPCC) released its Synthesis Report on Sunday, confirming that warming in the climate system is unequivocal and, if left unaddressed, will increase the likelihood of pervasive, irreversible damage to the environment and society. However, options to limit climate change and adapt to its impacts are available.

Working Group II of the Intergovernmental Panel on Climate Change (IPCC) has released its full contribution to the IPCC Fifth Assessment Report (AR5). The Working Group II report provides the most comprehensive look to date at the worldwide impacts of climate change and the opportunities for response.

In coordination with the National Ocean Council, the Department of State is requesting expert reviewers for the draft United Nations World Ocean Assessment (WOA). The WOA assesses the ocean's role in the Earth system, food security and food safety, human activities, and biological diversity.

According to the UN’s World Meteorological Organization (WMO), a surge in carbon dioxide levels drove the amount of greenhouse gases in the atmosphere to a record high in 2013. Greenhouse gas levels rose more between 2012 and 2013 than at any time in the last 30 years.

On January 1, the State Department submitted the 2014 U.S. Climate Action Report to the United Nations Framework Convention on Climate Change (UNFCCC). The report details actions that the U.S. is taking domestically and internationally to address climate change.

Cross-posted from USGS , a member of the U.S. Global Change Research Program Spring rains in the eastern Horn of Africa are projected to begin late this year and be substantially lower than normal. From March - May, the rains are expected to total only 60 to 85 percentage of the average rainfall in this region. This is a significant deterioration

On Tuesday, Climate Change Fellows from more than 10 African nations convened at USGCRPs National Coordination Office in Washington, DC to discuss their experiences applying scientific knowledge to climate change adaptation efforts in Africa.

Secretary of State Hillary Clinton last week announced the Climate and Clean Air Coalition, a voluntary partnership that includes the United States, Bangladesh, Canada, Ghana, Mexico, Sweden, and the United Nations Environment Programme (UNEP) to reduce short-lived atmospheric pollutants such as methane, hydrofluorocarbons, and black carbon , or soot.